Cavity Enhanced Optical Vernier Spectroscopy, Broad Band, High Resolution, High Sensitivity
arXiv:0706.1582 · doi:10.1103/PhysRevLett.99.263902
Abstract
A femtosecond frequency comb provides a vast number of equidistantly spaced narrow band laser modes that can be simultaneously tuned and frequency calibrated with 15 digits accuracy. Our Vernier spectrometer utilizes all of theses modes in a massively parallel manner to rapidly record both absorption and dispersion spectra with a sensitivity that is provided by a high finesse broad band optical resonator and a resolution that is only limited by the frequency comb line width while keeping the required setup simple.
11 pages, 3 figures, submitted to PRL
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